GLM 10B CN推理加速耗时

[vicwer]

您好，使用libai做glm-10b-chinese推理加速，目前现象：libai 2卡推理耗时是huggingface单卡耗时的两倍(0.6s vs 0.3s)，请帮忙分析一下原因，多��。
libai推理代码：python3 -m oneflow.distributed.launch --nproc_per_node 2 demo.py

# model parallel + pipeline parallel demo

import oneflow as flow
from projects.GLM.tokenizer.glm_tokenizer import GLMChineseTokenzier
from libai.utils import distributed as dist
from projects.GLM.configs.glm_inference import cfg
from projects.GLM.modeling_glm import GLMForConditionalGeneration
from projects.GLM.utils.glm_loader import GLMLoaderHuggerFace
from omegaconf import DictConfig
import time

# 只需简单配置并行方案
# parallel_config = DictConfig(
#     dict(
#         data_parallel_size=1,
#         tensor_parallel_size=2,
#         pipeline_parallel_size=2,
#         pipeline_num_layers=2 * 24
#     )
# )
parallel_config = DictConfig(
    dict(
        data_parallel_size=1,
        tensor_parallel_size=2,
        pipeline_parallel_size=1   
    )
)
dist.setup_dist_util(parallel_config)

tokenizer = GLMChineseTokenzier.from_pretrained("./models/glm/glm_10b_cn")
input_ids = tokenizer.encode(
    [
        "橘子的颜色是[MASK]。"
    ],
    return_tensors="of",
)
inputs = {"input_ids": input_ids, "attention_mask": flow.ones(input_ids.size())}
inputs = tokenizer.build_inputs_for_generation(inputs, max_gen_length=512)

sbp = dist.get_nd_sbp([flow.sbp.broadcast, flow.sbp.broadcast])
placement = dist.get_layer_placement(0)

loader = GLMLoaderHuggerFace(
    GLMForConditionalGeneration, 
    cfg, 
    "./models/glm/glm_10b_cn",
    embedding_dropout_prob=0,
    attention_dropout_prob=0,
    output_dropout_prob=0,
)
model = loader.load()

while True:
    t0 = time.time()
    outputs = model.generate(
        inputs=inputs['input_ids'].to_global(sbp=sbp, placement=placement), 
        position_ids=inputs['position_ids'].to_global(sbp=sbp, placement=placement), 
        generation_attention_mask=inputs['generation_attention_mask'].to_global(sbp=sbp, placement=placement), 
        max_length=512
    )
    torch.cuda.synchronize()
    if dist.is_main_process():
        print("cost time", time.time() - t0)

    res = tokenizer.decode(outputs[0])
    if dist.is_main_process():
        print(res)

huggingface推理代码：

from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
import time
import torch
ckpt_path = "./models/glm/glm_10b_cn"
#tokenizer = AutoTokenizer.from_pretrained("THUDM/glm-10b", trust_remote_code=True)
#model = AutoModelForSeq2SeqLM.from_pretrained("THUDM/glm-10b", trust_remote_code=True)
tokenizer = AutoTokenizer.from_pretrained(ckpt_path, trust_remote_code=True)
model = AutoModelForSeq2SeqLM.from_pretrained(ckpt_path, trust_remote_code=True)
model = model.half().cuda()
model.eval()

# Inference
#inputs = tokenizer("Ng is an adjunct professor at [MASK] (formerly associate professor and Director of its Stanford AI Lab or SAIL ). Also a pioneer in online education, Ng co-founded Coursera and deeplearning.ai.", return_tensors="pt")

while True:
    t0 = time.time()
    inputs = tokenizer("橘子的颜色是[MASK]。", return_tensors="pt")
    inputs = tokenizer.build_inputs_for_generation(inputs, max_gen_length=512)
    inputs = inputs.to('cuda')
    outputs = model.generate(**inputs, max_length=512, eos_token_id=tokenizer.eop_token_id)
    torch.cuda.synchronize()
    print("cost time", time.time() - t0)
    print(tokenizer.decode(outputs[0].tolist()))

推理硬件：

GPU:
2卡x80G A100
CPU:
processor       : 27
cpu family      : 6
model           : 106
model name      : Intel(R) Xeon(R) Platinum 8336C CPU @ 2.30GHz
cpu MHz         : 2294.608
cache size      : 55296 KB

相关库：

LiBai                  0.2.0      /root/code/env/libai
omegaconf              2.1.0
oneflow                0.9.0
torch                  1.12.1
torchaudio             0.12.1
torchvision            0.13.1
cuda Driver Version: 470.129.06 cu113

[xiezipeng-ML]

可以先试试这个pr的单卡推理demo，#484 (comment)
目前我这测试比torch快了
@vicwer